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Spring Boot provides several ways to configure different environments, depending on your needs. Here are some common approaches:

1. Using properties files:
You can create different properties files for each environment, such as `application-dev.properties` for development, `application-prod.properties` for production, etc. These files can contain environment-specific configuration such as database connection settings, logging levels, etc. You can then set the `spring.profiles.active` property in your `application.properties` file to specify which environment to use, or you can set it as a system property or environment variable when you start your Spring Boot application.

2. Using YAML files:
Similar to properties files, you can create YAML files for each environment, such as `application-dev.yml`, `application-prod.yml`, etc. The syntax for YAML files is more concise and easier to read than properties files. You can also set the `spring.profiles.active` property in your `application.yml` file to specify which environment to use.

3. Using command-line arguments:
You can use command-line arguments to specify the active profile when you start your Spring Boot application, like this: `java -jar myapp.jar –spring.profiles.active=dev`. This approach is useful when you want to deploy the same binary to multiple environments and specify the active profile at runtime.

4. Using environment variables:
You can set the `SPRING_PROFILES_ACTIVE` environment variable to specify the active profile. This approach is useful when deploying to platforms like Kubernetes or Docker that provide a way to set environment variables.

5. Using annotations:
You can use the `@Profile` annotation to specify which beans should be created based on the active profile. For example, you can annotate a bean with `@Profile(“dev”)` to ensure it is only created in the `dev` environment.

Overall, there are many ways to configure different environments in Spring Boot, and the best approach depends on your specific needs and preferences.